A light microscope study of the cytology and organization of neurons in the simple mammalian nucleus lateralis: Columns and swirls
A light microscope study of the cytology and organization of neurons in the simple mammalian nucleus lateralis: Columns and swirls
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简单哺乳动物外侧核神经元细胞学和组织的光学显微镜研究：柱和漩涡
DOI：
10.1007/bf00519881
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发表时间：
2004
期刊：
影响因子：
--
通讯作者：
V. Chan‐Palay
中科院分区：
文献类型：
--
作者：
V. Chan‐Palay
用几种不同的快速高尔基体法和尼氏制备法对大鼠外侧核进行研究。根据神经元的大小和轴突的位置，神经元被分为两类。较小的神经元或中间神经元的横截面积小于180μm~2，在细胞体附近有分支的短轴突。在极少数情况下，也可以看到小神经元有可能离开细胞核的较长轴突。较大的细胞(面积大于180μm~2)有离开核的长轴突，发出短的珠状回返侧枝。在外侧核的吻极和尾极，大的投射神经元和小的神经元都是多极的，树突呈漩涡状分支。核背侧缘和腹侧三分之一的神经元具有相似的树突配置。在中央柱状区，投射神经元的树突呈柱状排列，右侧为4~10点方向，左侧为8~2点方向。小神经元的集合通常位于内侧门区。在外侧核的每一部分，神经元以独特的方式排列。
SummaryThe lateral nucleus in the rat is investigated with several variants of the rapid Golgi method and in Nissl preparations. The neurons are divided into two classes according to their size and the disposition of their axons. The smaller neurons or interneurons have cross sectional areas less than 180 μm2, and short axons that ramify in the vicinity of the cell bodies. Small neurons have also been seen on rare occasions with longer axons that may leave the nucleus. The larger cells (areas greater than 180 μm2) have long axons that leave the nucleus and emit short, beaded, recurrent collaterals.In the rostral and caudal poles of the lateral nucleus, the large projection neurons as well as the small neurons are multipolar with swirled dendritic arborizations. Neurons in the dorsal rim and ventral third of the nucleus have similar dispositions of their dendrites. In the central columnar zone, the projection neurons have dendrites that are arranged in columns directed diagonally across the body of the nucleus in the 4 to 10 o'clock direction in the right lateral nucleus and the 8 to 2 o'clock direction in the left nucleus. A collection of small neurons is generally found in the medial hilus zone. In each part of the lateral nucleus, the neurons are arranged in characteristic ways.